Prepare the products.

The liver thoroughly wash, clean from films and cut into pieces of about 3x3 cm.

Liver slices dip them in flour and quickly fry in hot pan in small amount of oil until Golden brown. Fry liver (2-3 minutes each side), put in a plate and allow to cool a little so as not to burn yourself.

Meanwhile, the bacon cut into thin slices (if you have ready the meats - the better). Leeks cut into slices 0.5 cm thick. Every piece of fried liver wrap a strip of bacon and strung on skewers, alternating with rings of leeks. On a foil lined baking sheet lay the finished skewers and put in a preheated 200 degree oven for 20 minutes. In the middle of baking turn.

For the sauce, mix the ketchup and mayonnaise, add crushed garlic and chopped walnuts. Stir well and serve with finished skewers. Bon appetit!

I of-course don't use any spices nor salt, but if you find it necessary, you can lightly salt the liver before frying - just do not overdo it!